CN105898649B - A kind of sound collector suitable under remote high-noise environment - Google Patents
A kind of sound collector suitable under remote high-noise environment Download PDFInfo
- Publication number
- CN105898649B CN105898649B CN201610266541.8A CN201610266541A CN105898649B CN 105898649 B CN105898649 B CN 105898649B CN 201610266541 A CN201610266541 A CN 201610266541A CN 105898649 B CN105898649 B CN 105898649B
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- pedestal
- directional microphone
- reflecting surface
- sound
- pickup cartridge
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of sound collectors suitable under remote high-noise environment, it is intended to provide a kind of sound collector suitable for voice collecting under remote high-noise environment, its key points of the technical solution are that including pedestal and the staggered reflecting surface on the base of at least two groups, the pedestal is equipped with and the one-to-one pickup cartridge of reflecting surface, the pickup cartridge free end end is equipped with the first high directional microphone, the pickup cartridge is equipped with the second high directional microphone opposite with reflecting surface with the end that pedestal connects, at least one omni-directional microphone is placed between the high directional microphone of described first and the second high directional microphone, the noise signal that the setting of the application pickup cartridge longitudinal direction array is not only fed back uniformly is convenient for handling, and the first high directional microphone, second high directional microphone, reflecting surface energy high directivity simultaneously sufficiently receives target Sound source voice signal, and can be formed and be linked with video model.
Description
Technical field
The present invention relates to a kind of sound pickup devices, are suitable under remote high-noise environment more particularly to one kind
Sound collector.
Background technique
In security, security protection, fields, all kinds of video monitorings or the video acquisition system such as interview have been used widely.According to
All kinds of video monitorings or video acquisition system are held in the palm, related personnel in long-distance video can accurately be shot, but utilizing
Video monitoring system carries out being difficult to carry out remote speech acquisition when wide-long shot, as can acquired by remote speech, depending on
Frequency monitoring system analyzes suspect using language, dialog information, and video acquisition system can be with video speech synchronous recording, will
Working efficiency can be leveraged.But remote speech acquisition is carried out under actual environment background noise conditions still has high difficulty
Degree.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of collection suitable for voice collecting under remote high-noise environment
Sound device.
The technical solution of the invention is as follows, provides a kind of one kind having following structure and is suitable for remote strong noise ring
Sound collector under border, including the staggered reflecting surface on the base of pedestal and at least two groups, the pedestal be equipped with it is anti-
The one-to-one pickup cartridge in face is penetrated, the pickup cartridge free end end is equipped with the first high directional microphone, the pickup cartridge
The second high directional microphone opposite with reflecting surface, the high directional microphone of described first and the are equipped with the end of pedestal connection
At least one omni-directional microphone is placed between two high directional microphones.
After using the above structure, a kind of sound collector suitable under remote high-noise environment of the invention, with existing skill
Art is compared, and must be guaranteed using the high directivity microphone of acquisition device when having the advantage that remote speech acquisition
Remote speech is collected, pickup cartridge at least two groups and staggered in the application are compared to the setting of generic array formula, arrangement
The noise for the capture surrounding that omni-directional microphone can be balanced on pickup cartridge, and small in size, the pickup tube hub of array setting
Noise Rx and two sides noise Rx deviation it is more, keep processing difficult, as a result inaccurate, i.e., more of the application setting pick up
Sound tube keeps noise processed simple, and the noise signal of feedback is uniform, and is referred to using the first height that pickup cartridge free end end is arranged in
To microphone, remote speech at sound source most can be directly received the shortest time, the second high directional microphone and reflecting surface match
Phonetic incepting at most of sound source after capable of receiving the first high directional microphone is closed, and due to small in size after pickup cartridge arrangement,
A certain single human body or other sound sources can be more accurately directed at, are not easy by noise jamming, especially sound source near at sound source
When place has compared with strong background noise, the noise signal that the setting of the application pickup cartridge longitudinal direction array is not only fed back uniformly is convenient for handling,
And the first high directional microphone, the second high directional microphone, reflecting surface energy high directivity and sufficiently receive target sound source voice letter
Number, and can be formed and be linked with video model, it is rotated together with the camera of acquisition video by pickup cartridge, and by video
Image size calculates sound source distance.
Preferably, the reflecting surface refers to trumpet type or the throwing focused to sound reflection at the second high directional microphone
The reflecting surface of object type.
Preferably, the pedestal is equipped with the driving assembly that driving reflecting surface is moved axially along pickup cartridge.
Preferably, the position on the pedestal and between neighboring reflection face is equipped with poly- sound block.
Preferably, the poly- sound block is detachably connected on pedestal.
Preferably, the poly- sound block is equipped with inserted block, and the pedestal is equipped with the annular groove matched with inserted block.
Preferably, pickup cartridge is rotatablely connected on the base respectively on the pedestal, and the reflecting surface is followed by phase
Corresponding pickup cartridge rotation.
Preferably, it is equipped on the outside of the reflecting surface by the concave ring of sound reflection.
Preferably, the pedestal is equipped with the turntable of driving pedestal rotation.
Preferably, the two sides of base is respectively equipped with camera and light emitting source
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram one suitable for the sound collector under remote high-noise environment of the invention.
Fig. 2 is a kind of structural schematic diagram two suitable for the sound collector under remote high-noise environment of the invention.
Fig. 3 is the structural schematic diagram of pickup cartridge and reflecting surface of the invention.
Fig. 4 is the schematic diagram of sound-source signal of the present invention and noise signal.
It is as shown in the figure: 1, pedestal；2, pickup cartridge；3, the first high directional microphone；4, the second high directional microphone；5, omnidirectional
Property microphone；6, reflecting surface；7, turntable；8, camera；9, light emitting source.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
It please refers to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of collection sound suitable under remote high-noise environment of the invention
Device, including the staggered reflecting surface 6 on pedestal 1 of pedestal 1 and at least two groups, the pedestal 1 is equipped with and reflecting surface 6 one
One corresponding pickup cartridge 2, the 2 free end end of pickup cartridge be equipped with the first high directional microphone 3, the pickup cartridge 2 with
The end that pedestal 1 connects is equipped with the second high directional microphone 4 opposite with reflecting surface 6, high 3 He of directional microphone of described first
At least one omni-directional microphone 5 is placed between second high directional microphone 4, the reflecting surface 6 refers to sound reflection
The reflecting surface 6 for focusing to the trumpet type or parabolic type at the second high directional microphone 4 can assemble more sound-source signal and accurate
It feeds back to the second high directional microphone 4, keeps reception more preferable, the high directional microphone 3 of described first and the second high direction wheat
It is placed at least one omni-directional microphone 5 between gram wind 4, is located at the first high directional microphone 3 and the second high directional microphone 4
Nearby setting is equipped with omni-directional microphone 5, for detecting closest to the received noise signal of high directional microphone, and due to the
The two high reflection signals for being directed toward Mike and receiving reflecting surface 6 have 1 body construction of pedestal since reflecting surface 6 is arranged on pedestal 1
The noise of generation is issued by reflecting surface 6, be arranged in equal omni-directional microphone 5 is set near the second high directional microphone 4 can
Effectively to receive noise signal, remote speech must guarantee to adopt when acquiring using the high directivity microphone of acquisition device
Collect remote speech, 2 at least two groups of pickup cartridge and staggered in the application are compared to the setting of generic array formula, arrangement
The noise for the capture surrounding that omni-directional microphone 5 can be balanced on pickup cartridge 2, and it is small in size, in the pickup cartridge 2 of array setting
The noise Rx of the heart and the noise Rx deviation of two sides are more, keep processing difficult, as a result inaccurate, i.e. more of the application setting
Pickup cartridge 2 keeps noise processed simple, and the noise signal of feedback is uniform, and uses and be arranged in the first of 2 free end end of pickup cartridge
High directional microphone 3 most can directly receive remote speech at sound source, the second high directional microphone 4 and reflection the shortest time
Face 6 matches phonetic incepting at most of sound source after capable of receiving the first high directional microphone 3, and since pickup cartridge 2 is arranged
It is small in size afterwards, a certain single human body or other sound sources can be more accurately directed at, are not easy by noise jamming near at sound source, especially
It is when having at sound source compared with strong background noise, and the noise signal that the application pickup cartridge 2 is not only fed back uniformly is convenient for handling, and first
High directional microphone 3, the second high directional microphone 4,6 energy high directivity of reflecting surface simultaneously sufficiently receive target sound source voice signal,
The first high 3 signal of directional microphone is formed into the first main signal by filter circuit and gain circuitry later, the second height is referred to
To 4 signal of microphone by filter circuit and by 5 signal of omni-directional microphone by squelch circuit, the circuit that will be handled well later
Signal averaging, which forms subtracting each other between signal and completes denoising, forms the second main signal, the first main signal and the superposition of the second main signal
Enhance and carry out array algorithm and complete output, and can be formed and be linked with video model, the pedestal 1 is equipped with driving pedestal 1
The turntable 7 of rotation is rotated together with the camera 8 for acquiring video by pickup cartridge 2, and passes through the big subtotal of image in video
Calculate sound source distance.
The pedestal 1 is equipped with the driving assembly that moves axially along pickup cartridge 2 of driving reflecting surface 6, by by reflecting surface 6
It can be moved axially back and forth along pickup cartridge 2, can complete sound-source signal of the different sound sources apart from lower reflection can accurately converge to second
On high directional microphone 4, the range measurement of sound source can be formed by video between the calculating of image size or array microphone
Deviation of signal be calculated, or make that additional ranging component, such as laser ranging component is arranged.
Position on the pedestal 1 and between neighboring reflection face 6 is equipped with poly- sound block, further increases reflecting surface 6
Product, converges to more sound source models on the second high directional microphone 4, the poly- sound block is detachably connected on pedestal 1, is made
Structure adapts to the variation under varying environment, if sound source more recently condition does not have to install poly- sound block, reduces volume, described is poly-
Sound block is equipped with inserted block, and the pedestal 1 is equipped with the annular groove matched with inserted block, is cooperated by slot and convex block, easy for installation,
Structure is simple, is equipped on the outside of the reflecting surface 6 by the concave ring of sound reflection, and sound reflection is referred to that sector signal passes through at sound source
Concave ring multiple reflections are crossed, the direction toward pickup cartridge 2 is deviateed, enable at sound source that signal is less to be received by omni-directional microphone 5, outside
Portion's noise is also less to make signal at sound source be strengthened by 1 surface reflection of pedestal to the second high directional microphone 4, reflection
The concave ring and annular groove of sound can be same structure, keep overall structure more compact and reasonable.
Pickup cartridge 2 is rotatably connected on respectively on pedestal 1 on the pedestal 1, and the reflecting surface 6 is followed by corresponding
Pickup cartridge 2 rotate, so that pickup cartridge 2 is relatively rotated, i.e. more pickup cartridges 2 can be formed similar to fan-shaped shape, more accurately
The signal of cone that issues of reception sound source, and can the emerging microphone reception of a degree of 2 middle part omnidirectional of reductions pickup cartridge
Sound-source signal makes signal at sound source be strengthened.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of sound collector suitable under remote high-noise environment, it is characterised in that: handed over including pedestal (1) and at least two groups
Mistake is arranged in the reflecting surface (6) on pedestal (1), and the pedestal (1) is equipped with and reflecting surface (6) one-to-one pickup cartridge
(2), the pickup cartridge (2) free end end is equipped with the first high directional microphone (3), the pickup cartridge (2) and pedestal (1)
The end of connection is equipped with the second high directional microphone (4) opposite with reflecting surface (6), the high directional microphone of described first (3)
And second be placed at least one omni-directional microphone (5) between high directional microphone (4), the reflecting surface (6) refer to by
Sound reflection focuses to the reflecting surface (6) of trumpet type or parabolic type at the second high directional microphone (4), the pedestal (1)
It is equipped with the driving assembly that driving reflecting surface (6) is moved axially along pickup cartridge (2), the pedestal (1) is equipped with driving pedestal (1)
The turntable (7) of rotation.
2. a kind of sound collector suitable under remote high-noise environment according to claim 1, it is characterised in that: described
Pedestal (1) on and position between neighboring reflection face (6) be equipped with poly- sound block.
3. a kind of sound collector suitable under remote high-noise environment according to claim 2, it is characterised in that: described
Poly- sound block be detachably connected on pedestal (1).
4. a kind of sound collector suitable under remote high-noise environment according to claim 3, it is characterised in that: described
Poly- sound block be equipped with inserted block, the pedestal (1) is equipped with the annular groove that matches with inserted block.
5. a kind of sound collector suitable under remote high-noise environment according to claim 1, it is characterised in that: described
Pedestal (1) on pickup cartridge (2) be rotatably connected on pedestal (1) respectively, the reflecting surface is followed by corresponding pickup
Manage (2) rotation.
6. a kind of sound collector suitable under remote high-noise environment according to claim 1, it is characterised in that: described
Reflecting surface (6) on the outside of be equipped with the concave ring of sound reflection.
7. a kind of sound collector suitable under remote high-noise environment according to claim 1, it is characterised in that: described
Pedestal (1) two sides be respectively equipped with camera (8) and light emitting source (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266541.8A CN105898649B (en) | 2016-04-26 | 2016-04-26 | A kind of sound collector suitable under remote high-noise environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266541.8A CN105898649B (en) | 2016-04-26 | 2016-04-26 | A kind of sound collector suitable under remote high-noise environment |
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| Publication Number | Publication Date |
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| CN105898649A CN105898649A (en) | 2016-08-24 |
| CN105898649B true CN105898649B (en) | 2019-01-18 |
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| CN201610266541.8A Active CN105898649B (en) | 2016-04-26 | 2016-04-26 | A kind of sound collector suitable under remote high-noise environment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274910A (en) * | 2017-05-17 | 2017-10-20 | 宁波桑德纳电子科技有限公司 | The supervising device and audio/video linkage method of a kind of audio/video linkage |
| CN109462785B (en) * | 2018-09-28 | 2023-12-19 | 北京旋极信息技术股份有限公司 | Audio processing method and transmitter receiver |
| CN112712817B (en) * | 2020-12-24 | 2024-04-09 | 惠州Tcl移动通信有限公司 | Sound filtering method, mobile device and computer readable storage medium |
| CN112770208B (en) * | 2021-01-18 | 2022-05-31 | 塔里木大学 | Intelligent voice noise reduction acquisition device based on automatic control classification |
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|---|---|---|---|---|
| CN2577524Y (en) * | 2002-10-20 | 2003-10-01 | 罗富强 | Parabolic focusing acoustic wave signal pick-up |
| CN102196333A (en) * | 2010-12-16 | 2011-09-21 | 宁波三维技术有限公司 | Long-distance sound pickup device for video positioning |
| US8587715B2 (en) * | 2011-01-07 | 2013-11-19 | JVC Kenwood Corporation | Sound pickup device |
| CN103813248A (en) * | 2014-03-10 | 2014-05-21 | 金如利 | Sound focusing voice pickup device |
| CN205545866U (en) * | 2016-04-26 | 2016-08-31 | 宁波桑德纳电子科技有限公司 | Sound collector suitable for under remote strong noise environment |
-
2016
- 2016-04-26 CN CN201610266541.8A patent/CN105898649B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2577524Y (en) * | 2002-10-20 | 2003-10-01 | 罗富强 | Parabolic focusing acoustic wave signal pick-up |
| CN102196333A (en) * | 2010-12-16 | 2011-09-21 | 宁波三维技术有限公司 | Long-distance sound pickup device for video positioning |
| US8587715B2 (en) * | 2011-01-07 | 2013-11-19 | JVC Kenwood Corporation | Sound pickup device |
| CN103813248A (en) * | 2014-03-10 | 2014-05-21 | 金如利 | Sound focusing voice pickup device |
| CN205545866U (en) * | 2016-04-26 | 2016-08-31 | 宁波桑德纳电子科技有限公司 | Sound collector suitable for under remote strong noise environment |
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|---|---|
| CN105898649A (en) | 2016-08-24 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhu Yunjie Inventor after: Xu Weiming Inventor after: He Ting Inventor after: Huang Songyue Inventor before: Zhu Yunhai Inventor before: Tong Feng Inventor before: Chen Lei Inventor before: Xu Weiming Inventor before: He Ting Inventor before: Huang Songyue Inventor before: Zhou Yan |
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Denomination of invention: Voice collector suitable for long-distance high noise environments Effective date of registration: 20190711 Granted publication date: 20190118 Pledgee: Ningbo Tianjin Enterprise Service Co., Ltd. Pledgor: Ningbo Sangdena Electronic Technology Co., Ltd. Registration number: 2019330000191 |
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Date of cancellation: 20200720 Granted publication date: 20190118 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: 2019330000191 |
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Denomination of invention: Voice collector suitable for long-distance high noise environments Effective date of registration: 20200722 Granted publication date: 20190118 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020330000527 |
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Date of cancellation: 20211015 Granted publication date: 20190118 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO SANGDENA ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020330000527 |
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